Marvel Studios previewed the first 10 minutes of “Captain America: The Winter Soldier” at a fan screening of the new one-shot “All Hail the King” in Hollywood on Monday night, providing an early glimpse of the sequel’s mix of action-packed superheroics and 1970s-style political intrigue.

The preview was introduced by Marvel Studios’ president Kevin Feige during a post-show Q&A with “All Hail the King” writer-director Drew Pearce and star Ben Kingsley.

(If you’d rather be surprised by the opening when “Winter Soldier” opens April 4, you might want to stop reading now — spoilers are below.)

The “Winter Soldier” clip began with a humorous, possibly fateful meeting between Steve Rogers, a.k.a. super-soldier Captain America (Chris Evans) and fellow military man Sam Wilson, a.k.a. the Falcon (a bulked-up Anthony Mackie), with the former repeatedly lapping the latter on a jog around the Washington Monument.

After a quick post-run chat during which Cap adds Marvin Gaye to a handwritten list of things to catch up on (having been frozen in suspended animation for a few decades), he’s picked up by S.H.I.E.L.D. colleague Natasha Romanoff, a.k.a. Black Widow (Scarlett Johansson) in a sleek sports car.

“You can’t run everywhere,” Cap quips.

Then it’s time for him and Black Widow to go to work. They’re sent under the cover of darkness to recover a mobile satellite launch pad that’s been stolen in the Indian Ocean. While being briefed on the mission, Cap grouses that he’s tired of cleaning up S.H.I.E.L.D. leader Nick Fury’s (Samuel L. Jackson) messes — before free-diving out of a plane into the ocean, then surfacing to single-handedly clear the deck of mercenaries. Black Widow and a squad of black-clad S.H.I.E.L.D. agents eventually catch up with Cap.

The clip then cuts to a montage of explosions and exposition culled from the rest of the film, teasing big action set pieces and sneaking a peek at the eponymous antagonist, the Winter Soldier (Sebastian Stan), a brainwashed assassin with a mechanical arm and a connection to Cap’s past.

The preview of the upcoming film, directed by brothers Joe and Anthony Russo, proved an energetic capstone to an otherwise comedic-leaning evening, which began with the sly “All Hail the King” short, in which Kingsley reprises his role as Trevor Slattery, the washed-up actor and would-be supervillain the Mandarin from “Iron Man 3” (which Pearce co-wrote). The one-shot is included on the Blu-ray and digital download of “Thor: The Dark World,” released Tuesday.

During the Q&A, Kingsley, who clearly had a ball playing Slattery, called the character “a salute to the struggling actor” and admitted that he was “worried about him” after the events of “Iron Man 3.”

It turns out Kingsley needn’t have worried. As Pearce said, Trevor is a survivor — “like a cockroach in the apocalypse.”